package ooday03;

public class InterfaceDemo {
    public static void main(String[] args) {

    }
}

//演示接口的语法
interface Inter {
    abstract void show();

    void test();//接口中的方法默认都是抽象的,前面默认有absstract
    //void say(){}//编译错误,抽象方法不能有方法体
}

class InterImpl implements Inter {
    public void show() {
    }

    public void test() {
    }
}

interface Inter1{
    void show();
}
interface Inter2{
    void test();
}


abstract class Aoo{
    abstract void say();
}

    class Boo extends Aoo implements Inter1,Inter2{

    public void show(){}

        public void test(){}

        void say(){}


    }

    interface Inter3{
    void show();
    }

interface Inter4 extends Inter3{
    void test();
}

class Coo implements Inter4{
    public void test(){}
    public void show(){}

}
